[tz] [PATCH] Revert recent pre-1970 changes.

Lester Caine lester at lsces.co.uk
Mon Sep 2 19:32:44 UTC 2013

Guy Harris wrote:
> Do your tablets have Wi-Fi?  If so, you might be able to use something such as Skyhook:
> 	http://www.skyhookwireless.com/howitworks/
> And*if*  your tablets are running some OS that includes location services (iOS and Android both appear to), you might be able to use that and not even have to care how it happens.

Guy - I'm getting annoyed by all this shouting and stamping - its got nothing to 
do with what is ACTUALLY being discussed!

I work with customers who have trouble even getting a wireless connection at 
time and many of our systems have to cater for periods without access to the 
internet. The BULK of my systems are accessed by (web)browsers on many different 
devices most of which are never actually logged into our sites so currently we 
have no way of even identifying their timezone. Stephen has already explained 
the limitations on matching timezones with countries and I'm not really bothered 
where that matching is done as long as there is something consistent and correct 
I can use. If that has to be outside TZ then fine.

But this is just a very small part of the use of the tz data, and my main 
interest is historical times, where we have the location. OSM has a growing 
archive of that. All I need to be able to identify is which timezone a location 
is in on a particular date. THIS is where the shape files defining ISO3166 codes 
can be useful and again I'm looking to match that data to the timezone data. At 
some point we will also map the tz zones and their historic changes, but the 
current database is countries.

Now if you have something constructive ... please don't pad it out with 
unnecessary information ...

Lester Caine - G8HFL
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